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The ALTAIR Pathfinder spacecraft consists of subsystems which incorporate new technologies in direct support of needed capabilities. New elements for space usage in each subsystem are described. The Guidance, Navigation, and Control subsystem includes inertial reference units, star trackers, and conformal torque coils. The Command and Data Handling subsystem utilizes a new flight processor and level zero (no software) control. The Electrical Power Subsystem includes deployable solar arrays. The Structures subsystem uses an additively manufactured structure. The Thermal Control subsystem includes advanced passive thermal management technology. The RF Payload subsystem utilizes high performance front-end and on board processing.

Demonstration of the on-orbit functionality of a new class of navigation sensors including low cost Star Tracker and Inertial reference units for attitude determination.

Demonstration of onboard processing for next generation radios and computing and a new RF front end are key components of the investigation.

Millennium Space Systems has signed a contract with NanoRacks LLC to launch the satellite into Low Earth Orbit (LEO) via the International Space Station (ISS). The spacecraft was carried to the station in 2017 via the Cygnus CRS-7 cargo flight, from where the satellite was deployed on 17 May 2017.